Gelsolin (recomb. Human)

On Arrival: 4°C

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Gelsolin protein has been purified from E.coli expressing recombinant 6xHIS-tagged human gelsolin (plasma isoform). Gelsolin belongs to a class of actin severing and capping proteins called class I F-actin capping proteins. Each of these class I proteins contains a series of conserved 125-150 amino acid repeat motifs. Gelsolin is characterized by the presence of six repeated motifs, three of which are actin binding domains. Gelsolin exerts a powerful regulatory role on actin filament length and its activity can be modulated by Ca²⁺ levels, pH , polyphosphoinositides and post-translational modification. Plasma gelsolin contains an additional 25aa leader sequence compared to the cytoplasmic isoform. Gelsolin is supplied as a white lyophilized powder. After reconstitution with of nanopure water, the protein will be in the following buffer: 10 mM Tris pH 7.5, 10 mM NaCl, 0.1 mM MgCl2, 1% (w/v) sucrose, and 0.1% (w/v) dextran. The lyophilized protein is stable at 4C desiccated (<10% humidity) for 6 months.

Figure 1. Gelsolin protein purity determination. A 20 ug sample of HPG5 was separated by electrophoresis in a 4-20% SDS-PAGE system and stained with Coomassie Blue. Protein quantitation was performed using the Precision Red Protein Assay Reagent (Cat.# ADV02).